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Finding the Third Proportional to 292,078.13 and 630,864.38

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Solution

The third proportional to 292,078.13 and 630,864.38 is: 1,362,614.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,078.13 : 630,864.38 = 630,864.38 : x
  2. Step 2: Convert to fraction form
    292,078.13/630,864.38 = 630,864.38/x
  3. Step 3: Cross multiply
    292,078.13x = 630,864.38 × 630,864.38
  4. Step 4: Simplify right side
    292,078.13x = 397,989,859,644.14
  5. Step 5: Solve for x
    x = 397,989,859,644.14/292,078.13
  6. Step 6: Final answer
    x = 1,362,614.40

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.